Our Services

At Porter Engineering, we deliver cost-efficient, long-lasting solutions in civil and structural engineering. Whether we’re designing a new bridge, inspecting critical infrastructure, calculating load capacities, or creating custom residential plans, our focus is on safety, durability, and value. We combine modern design practices with proven techniques to minimize maintenance costs, extend the life of structures, and provide clients with reliable results from concept to completion.
View of a large cable-stayed bridge with two tall support towers and multiple cables extending from them, taken from below at an angle.

bridge design

Our bridge designs range from small timber pedestrian crossings to large multi-span highway structures, covering concrete, steel, timber, single-span, and multi-span bridge types. Every design is created to be structurally sound, cost-effective, and built for long-term performance. We use advanced design practices and efficient construction methods to reduce future maintenance needs while ensuring reliability. From concept to final build, each project reflects our technical expertise, innovative thinking, and commitment to quality. Bridge design services that we provide include the following:

  • Conceptual Design

  • Feasibility Analysis

  • Cost Analysis

  • Bridge Alternatives

  • Bridge Design Plans

  • Repair and Rehabilitation Plans

  • Architectural Design and Aesthetics

  • Hydrology, Hydraulic, and Scour Analysis

  • Specifications and Construction Guidance

Two construction workers wearing safety helmets and reflective vests walking across a bridge under construction, with a cityscape in the background.

bridge INSPECTION

We provide bridge inspection services in accordance with National Bridge Inspection Standards (NBIS). Inspections are performed for state and local agencies and include routine, damage, and special inspections as required. Our work supports FHWA, AASHTO, and State DOT requirements with accurate documentation and compliance-ready reporting. Bridge inspection services that we provide include the following:

  • Routine Inspections

  • Damage Inspections

  • In-Depth Inspections

  • Non-Redundant Steel Tension Member (NSTM) Inspections

  • Initial Inspections

  • Maintenance Recommendations

  • Repair or Replacement Cost Analysis

  • Scour Analysis

An aerial view of a multi-lane bridge with cars and trucks traveling in both directions, casting long shadows on the road.

bridge LOAD RATINGS

Porter Engineering offers bridge load rating services to support safe operation, permitting, and regulatory compliance. Load ratings are performed in accordance with AASHTO and LRFR methodologies. We complete load rating analyses for timber, steel, and concrete bridges and assist with overload permits, posting recommendations, and NBIS load rating compliance. Bridge load rating services that we provide include the following:

  • Analysis of Bridge Deficiencies for Load Rating

  • Load Ratings per AASHTO Standards

  • Load Rating Summaries and Reports

  • Repair or Replacement Recommendations

Aerial view of a suburban neighborhood with numerous single-family homes, green lawns, and trees. The streets are curvy and well-maintained, with cars parked on the side. In the background, there is a large wooded area extending to the horizon under a cloudy sky.

residential building design

We design residential structures that meet all permitting requirements, including IBC and IRC, while reflecting each homeowner’s vision. Our team handles design plans, specifications, and calculations, working directly with city and county planning departments to streamline approvals. Support continues through construction as we collaborate with homeowners and contractors to keep projects on track and aligned with the original design. Residential building design services that we provide include:

  • Home Additions

  • Basements

  • Detached Garages

  • Attached Garages

  • Accessory Dwelling Units (ADUs)

  • Patio Coverings

  • Concrete Flatwork

  • Retaining Walls

  • Structural Modifications

Strong designs. Lasting results.

Let’s build your vision.

Contact Us!